A 16-Channel high-resolution time and charge measurement module for the external target experiment in the CSR of HIRFL

High precision time measurement is required in the readout of the neutron wall and TOF walls in the ex- ternal target experiment of the Cooling Storage Ring （CSR） project in the Heavy Ion Research Facility in Lanzhou （HIRFL）. Considering the time walk correction, both time and charge are measured in...

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Bibliographic Details
Published in:核技术（英文版） 2014-02, Vol.25 (1), p.27-32
Main Author: 赵雷 康龙飞 周家稳 刘树彬 安琪
Format: Article
Language:English
Subjects:
16通道
HIRFL
企业社会责任
实验
时间测量
测量模块
电荷测量
高解析度
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Summary:High precision time measurement is required in the readout of the neutron wall and TOF walls in the ex- ternal target experiment of the Cooling Storage Ring （CSR） project in the Heavy Ion Research Facility in Lanzhou （HIRFL）. Considering the time walk correction, both time and charge are measured in the readout electronics. In this 16-channel measurement module, time and charge information are digitized by TDCs at the same time based on the Time-Over-Threshold （TOT） method; meanwhile, by employing high-density ASIC chips, the electronics complexity is effectively reduced. Test results indicate that this module achieves a time resolution better than 25 ps and a charge resolution better than 5% over the input amplitude range from 50 mV to 3V.
ISSN:1001-8042
2210-3147
DOI:10.13538/j.1001-8042/nst.25.010401